Statement I: Rutherford's gold foil experiment cannot explain the line spectrum of hydrogen atom.

Statement II: Bohr's model of hydrogen atom contradicts Heisenberg's uncertainty principle.

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Question

Statement I: Rutherford's gold foil experiment cannot explain the line spectrum of hydrogen atom.

Statement II: Bohr's model of hydrogen atom contradicts Heisenberg's uncertainty principle.

Choose the most appropriate answer:

Canvas Classes · Accepted Answer

Statement I — True: Rutherford's nuclear model only describes the nuclear structure; it cannot explain why electrons emit discrete spectral lines. It predicts electrons should spiral into the nucleus.

Statement II — True: Bohr's model assigns definite orbits (fixed position and momentum) to electrons, which directly violates Heisenberg's uncertainty principle ().

Answer: Option (4) — Both statements are true

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